Aerosol-generating device

Abstract

The utility model provides an aerosol generating device. The aerosol generating device comprises a shell; the first air pipe and the second air pipe are respectively arranged in the shell; the suction nozzle is arranged at one end of the shell and defines a first opening, a second opening and a first gas cavity; the first sealing element is arranged on the shell and is used for sealing the liquid storage cavity; wherein the inner wall of the first gas cavity is provided with a first surface, the first sealing piece comprises a protruding gas guide part, at least part of the gas guide part is contained in the first gas cavity from the second opening, and the gas guide part is provided with a second surface matched with the first surface in shape; the second surface is provided with an air guide groove in airflow communication with the first air pipe and the second air pipe, and the air guide groove converges airflow in the first air pipe and the second air pipe to the first opening. The first surface is matched with the second surface, so that the first gas cavity is completely filled with the gas guide part, and aerosol is prevented from forming a large amount of condensate; and moreover, the phenomenon of evacuation can be avoided, so that a user can obtain proper suction resistance during suction.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and particularly to aerosol generation apparatus. Background Technology

[0002] The aerosol generating device may include two gas tubes, and the aerosols in the two gas tubes are mixed at the nozzle. In previous designs, the gas chamber at the nozzle for mixing the aerosols from the two gas tubes was relatively large, which caused the user to experience air cavitation problems during suction. Furthermore, when the two aerosols converged in the gas chamber, a large amount of condensate was easily generated. Utility Model Content

[0003] To solve the problems of excessive condensation and cavitation at the nozzle.

[0004] One embodiment of this application provides an aerosol generating device, comprising: a housing defining a liquid storage chamber for storing a liquid matrix; a first air pipe and a second air pipe respectively disposed within the housing for providing airflow paths; a suction nozzle disposed at one end of the housing, the suction nozzle defining a first opening, a second opening, and a first gas cavity located between the first opening and the second opening, the first opening being accessible to a user; and a first sealing member disposed on the housing for sealing the liquid storage chamber; wherein the inner wall of the first gas cavity has a first surface, the first sealing member includes a protruding air guide portion, at least a portion of the air guide portion being received into the first gas cavity from the second opening, the air guide portion having a second surface adapted to the shape of the first surface; and an air guide groove is formed on the second surface to maintain airflow communication with the first air pipe and the second air pipe, the air guide groove converging the airflow in the first air pipe and the second air pipe to the first opening.

[0005] One embodiment of this application provides an aerosol generating device, wherein the cross-section of the gas guiding part and / or the first gas chamber is circular.

[0006] One embodiment of this application provides an aerosol generating apparatus, wherein the cross-sectional area of ​​the first gas chamber gradually decreases from the second opening toward the first opening.

[0007] One embodiment of this application provides an aerosol generating device, wherein the air guide groove includes a first air guide groove connected to the first air pipe and a second air guide groove connected to the second air pipe, the first air guide groove and the second air guide groove merging together and connected to the first opening.

[0008] One embodiment of this application provides an aerosol generating device, wherein a gap is defined between the first air guide groove and the second air guide groove, and the gap includes an arc surface for guiding airflow through which.

[0009] One embodiment of this application provides an aerosol generating apparatus, further comprising a first liquid absorption element held on the first seal, the first liquid absorption element surrounding the air guide portion and at least partially covering the air guide groove.

[0010] One embodiment of this application provides an aerosol generating apparatus, which further includes a second liquid absorption element held on the nozzle, the second liquid absorption element being in contact with the first liquid absorption element.

[0011] One embodiment of this application provides an aerosol generating device, wherein the housing further defines a second gas chamber, the first sealing member includes a first vent and a second vent, one end of the first vent and one end of the second vent are both connected to the first gas chamber, and the other end of the first vent and the other end of the second vent are both connected to the second gas chamber.

[0012] One embodiment of this application provides an aerosol generating device, wherein the first seal and the nozzle together define an air guide groove, one end of the first air hole and one end of the second air hole are both connected to the air guide groove, and the air guide groove is arc-shaped.

[0013] One embodiment of this application provides an aerosol generating device, wherein the first sealing element is provided with a pressure relief hole and a pressure relief channel, and the pressure relief hole and the pressure relief channel are connected to the first gas chamber and the second gas chamber.

[0014] One embodiment of this application provides an aerosol generating device, wherein the first sealing member includes a first main body portion and a second main body portion that are connected to each other and disposed opposite to each other. The first main body portion is disposed on the side of the first sealing member facing the nozzle, the first main body portion is circular, and the second main body portion is racetrack shaped.

[0015] One embodiment of this application provides an aerosol generating device, including a second seal, a first atomizing component, and a second atomizing component. The first atomizing component and the second atomizing component are installed in the mounting hole of the second seal, the first atomizing component is connected to the first air pipe, and the second atomizing component is connected to the second air pipe.

[0016] One embodiment of this application provides an aerosol generating device, wherein a liquid storage element is provided in the liquid storage chamber, and the liquid storage element is used to absorb and retain a liquid matrix.

[0017] The first surface of the first gas chamber of the nozzle of this application is adapted to the second surface of the air guide portion of the first seal. The air guide portion has a contoured structure, which allows the air guide portion to completely fill the first gas chamber and form a mixing channel only through the air guide groove, thus avoiding the formation of a large amount of condensate in the first gas chamber. It can also avoid the phenomenon of cavitation caused by a large mixing channel, so that the user can obtain a suitable suction resistance when suctioning. Attached Figure Description

[0018] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0019] Figure 1 This is a schematic diagram of an aerosol generating apparatus according to an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of an aerosol generating apparatus according to an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of a suction nozzle according to one embodiment of this application;

[0022] Figure 4 This is a schematic diagram of a suction nozzle according to one embodiment of this application;

[0023] Figure 5 This is a schematic diagram of a first sealing element according to an embodiment of this application;

[0024] Figure 6 This is a schematic diagram of a first sealing element according to an embodiment of this application;

[0025] Figure 7 This is a schematic diagram of a first sealing element according to an embodiment of this application;

[0026] Figure 8 This is a schematic diagram of the first sleeve according to an embodiment of this application.

[0027] In the picture:

[0028] 10. Aerosol generating device;

[0029] 1. Housing; 11. Liquid storage chamber; 12. Second gas chamber; 13. Liquid storage component; 14. First sleeve; 15. Second sleeve; 151. Battery housing chamber;

[0030] 21. First trachea; 211. First aerosol channel; 212. First gap; 22. Second trachea; 221. Second aerosol channel; 222. Second gap;

[0031] 3. Suction nozzle; 31. First gas chamber; 311. First surface; 32. First opening; 33. Second opening; 35. Receiving groove; 36. Second liquid absorption element; 37. First protrusion;

[0032] 41. First sealing element; 411. First vent; 412. Second vent; 413. Air guide groove; 4131. First air guide groove; 4132. Second air guide groove; 4133. Spacing part; 4134. Arc surface; 414. Pressure relief hole; 415. Pressure relief channel; 416. First main body part; 417. Second main body part; 4171. Second protrusion; 418. Air guide part; 4181. Second surface; 419. First liquid absorption element;

[0033] 42. Second seal; 421. Mounting hole;

[0034] 43. Third sealing element;

[0035] 5. Battery assembly;

[0036] 61. First atomizing component; 62. Second atomizing component;

[0037] 7. Base. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0039] The terms "first," "second," and "third" used in this application are for descriptive purposes only and should not be construed as indicating or implying the quantity or order of the indicated technical features relative to their importance. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship or movement of the components in a specific orientation (as shown in the accompanying drawings). If the specific orientation changes, the directional indication will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0040] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0041] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be intervening elements. When an element is referred to as being "connected to" another element, it can be directly connected to the other element, or there may be one or more intervening elements. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0042] One embodiment of this application provides an aerosol generating device 10, such as... Figure 1-2 As shown, the device includes: a housing 1, a first air tube 21, a second air tube 22, a suction nozzle 3, and a first sealing member 41. The housing 1 defines a liquid storage chamber 11 for storing a liquid matrix. The first air tube 21 and the second air tube 22 are respectively disposed within the housing 1 to improve the airflow path. The suction nozzle 3 is disposed at one end of the housing 1, and the suction nozzle 3 defines a first opening 32, a second opening 33, and a first gas chamber 31 located between the first opening 32 and the second opening 33. The first opening 32 can be held in the mouth by a user. The first sealing member 41 is disposed on the housing 1 and is used to seal the liquid storage chamber 11. The first gas chamber 31 has a first surface 311 on its inner wall. The first sealing member 41 includes a protruding air guide portion 418. At least a portion of the air guide portion 418 is received into the first gas chamber 31 from the second opening 33. The air guide portion 418 has a second surface 4181 that is adapted to the shape of the first surface 311. An air guide groove 413 is formed on the second surface 4181 to maintain airflow communication with the first air pipe 32 and the second air pipe 33. The air guide groove 413 draws the airflow in the first air pipe 32 and the second air pipe 33 to the first opening 32.

[0043] In this application, the first surface 311 of the first gas chamber 31 of the nozzle 3 is adapted to the second surface 4181 of the air guide portion 418 of the first seal 41. The air guide portion 418 has a contoured structure, which allows the air guide portion 418 to completely fill the first gas chamber 31 and form a mixing channel only through the air guide groove 413, thus avoiding the formation of a large amount of condensate in the first gas chamber 31. Moreover, it can also avoid the phenomenon of cavitation caused by a large mixing channel, so that the user can obtain a suitable suction resistance when suctioning.

[0044] In one embodiment of this application, the cross-section of the air guide 418 and / or the first gas chamber 31 is circular, so that when the nozzle 3 is installed into the housing 1, the installation orientation does not need to be considered. Installation is faster and more convenient.

[0045] In one embodiment of this application, the first air tube 21 and the second air tube 22 respectively define a first aerosol channel 211 and a second aerosol channel 221. The aerosols in the first aerosol channel 211 and the second aerosol channel 221 are mixed in the air guide groove 413, so that the user obtains a larger amount of smoke and a stronger aroma from the mouthpiece 3.

[0046] In one embodiment of this application, the liquid storage chamber 11 may include a first liquid storage chamber and a second liquid storage chamber. The first liquid storage chamber and the second liquid storage chamber may each contain different liquid matrices. A first air tube 21 is disposed in the first liquid storage chamber, and a second air tube 22 is disposed in the second liquid storage chamber. The liquid matrices in the first liquid storage chamber and the second liquid storage chamber are atomized by the atomizing component to produce aerosols with different flavors, and are mixed in the mouthpiece 3 to give the user a mixed flavor taste.

[0047] In one embodiment of this application, the liquid matrix may comprise a liquid containing tobacco-containing substances with volatile tobacco aroma components, or it may be a liquid containing non-tobacco substances. The liquid matrix may comprise water, pharmaceutical solutions, solvents, ethanol, plant extracts, fragrances, flavorings, or vitamin mixtures, etc. The vitamin mixture may be a mixture containing at least one of vitamin A, vitamin B, vitamin C, and vitamin E, but is not limited thereto. Based on the different properties of the liquid matrix, aerosol matrix reservoirs can be used in different fields, such as medical applications and electronic aerosol atomization.

[0048] In one embodiment of this application, such as Figure 3-4 As shown, the cross-sectional area of ​​the first gas chamber 31 gradually decreases from the second opening 33 toward the first opening 32, allowing the aerosols in the first air tube 21 and the second air tube 22 to mix fully in a larger space before being drawn in by the user.

[0049] In one embodiment of this application, the suction nozzle 3 includes a first opening 32 and a second opening 33 disposed opposite to each other. The second opening 33 is disposed at one end of the first air tube 21 and the second air tube 22. The first gas chamber 31 is connected to the first air tube 21 and the second air tube 22. The first opening 32 is available for a user to hold in their mouth. In one embodiment of this application, the area of ​​the second opening 33 is larger than the area of ​​the first opening 32.

[0050] In one embodiment of this application, during transportation or use, the first opening 32 of the aerosol generating device 10 is provided with a silicone plug to prevent the aerosol generating device 10 from being accidentally activated when there is external airflow disturbance.

[0051] In one embodiment of this application, the air guide groove 413 includes a first air guide groove 4131 that connects to the first air pipe 21 and a second air guide groove 4132 that connects to the second air pipe 22. The first air guide groove 4131 and the second air guide groove 4132 merge and connect to the first opening 32.

[0052] In one embodiment of this application, a spacer 4133 is defined between the first air guide groove 4131 and the second air guide groove 4132, and the spacer 4133 includes an arc surface 4134 for guiding airflow through it.

[0053] In one embodiment of this application, the aerosol generating device 10 further includes a first liquid absorption element 419 held on a first seal 41. The first liquid absorption element 419 surrounds the air guide portion 418 and at least partially covers the air guide groove 413. The first liquid absorption element 419 is used to adsorb the aerosol condensed in the air guide groove 413.

[0054] In one embodiment of this application, the aerosol generating device 10 further includes a second liquid absorption element 36 held on the nozzle 3, the second liquid absorption element 36 being in contact with the first liquid absorption element 419. In another embodiment of this application, the nozzle 3 has a receiving groove 35, in which the second liquid absorption element 36 is disposed.

[0055] In one embodiment of this application, the first liquid-absorbing element 419 and the second liquid-absorbing element 36 can be made of an elastic organic porous material. The first liquid-absorbing element 419 and the second liquid-absorbing element 36 can have a hardness or flexibility between that of conventional flexible plant cotton / non-woven fabric (Shore hardness less than 20A) and rigid porous ceramic / microporous metal (Shore hardness greater than 80A), thus exhibiting structural stability with extremely low expansion after absorbing and wetting the liquid matrix, while also possessing a certain degree of hardness for easy fixation and retention. In one embodiment of this application, the first liquid-absorbing element 419 and the second liquid-absorbing element 36 can be rigid synthetic cotton.

[0056] In one embodiment of this application, the outer surface of the suction nozzle 3 is provided with a plurality of first protrusions 37, and the suction nozzle 3 is interference-fitted with the housing 1 through the plurality of first protrusions 37.

[0057] In one embodiment of this application, a liquid storage element 13 is disposed in the liquid storage chamber 11, which is used to absorb and retain the liquid matrix. In one embodiment of this application, a first gap 212 is formed between the first gas pipe 21 and the first seal 41, and a second gap 222 is formed between the second gas pipe 22 and the first seal 41. In one embodiment of this application, the housing 1 further defines a second gas chamber 12, which is a gas chamber between the liquid storage element 13 and the first seal 41 in the liquid storage chamber 11.

[0058] In one embodiment of this application, the liquid reservoir 13 can be made of an elastic organic porous material. The liquid reservoir 13 can have a hardness or flexibility between that of conventional flexible plant cotton / non-woven fabric (Shore hardness less than 20A) and rigid porous ceramic / microporous metal (Shore hardness greater than 80A), thus exhibiting structural stability with extremely low expansion after absorbing and wetting the liquid matrix, while also possessing a certain degree of hardness for easy fixation and retention. In one embodiment of this application, the liquid reservoir 13 can be made of rigid synthetic cotton.

[0059] In one embodiment of this application, the first air tube 21 and the second air tube 22 may not be in direct contact with the first seal 41, and the aerosols in the first aerosol channel 211 and the second aerosol channel 221 may be mixed in the second gas chamber 12, so that the user obtains aerosols with a larger amount of smoke and a stronger aroma.

[0060] In one embodiment of this application, the first air tube 21 and the second air tube 22 may not be in direct contact with the first sealing member 41, and the aerosols in the first aerosol channel 211 and the second aerosol channel 221 may be mixed in the first gas chamber 31. When the liquid matrix in the liquid storage chamber 11 of the aerosol generating device 10 is consumed, the gas pressure in the second gas chamber 12 decreases, and air from the first air tube 21 or the second air tube 22 may enter the second gas chamber 12, thereby balancing the gas pressure in the liquid storage chamber 11 and ensuring the aerosol generating device 10 supplies liquid.

[0061] In one embodiment of this application, the aerosol generating device 10 includes a first sleeve 14 and a second sleeve 15, both of which are located inside the housing 1. The first sleeve defines a liquid storage chamber 11 and a second gas chamber 12, and the second sleeve 15 defines a battery receiving chamber 151 for receiving the battery assembly 5.

[0062] Battery assembly 5 provides electrical energy to the first atomizing component 61 and the second atomizing component 62. In one embodiment of this application, the DC supply voltage provided by battery assembly 5 is in the range of about 2.5V to about 9.0V, and the DC current provided by battery assembly 5 is in the range of about 2.5A to about 20A in amperes. Typically, battery assembly 5 is a rechargeable battery. Alternatively, battery assembly 5 may be another form of charge storage device, such as a capacitor. Battery assembly 5 may require recharging and may have a capacity that allows for storing sufficient energy for one or more pumping operations; for example, battery assembly 5 may have sufficient capacity to allow continuous aerosol generation over a predetermined period of time. In another example, battery assembly 5 may have sufficient capacity to allow the activation of a predetermined number of aerosol generating devices.

[0063] In one embodiment of this application, the aerosol generating device 10 includes a second seal 42 located between the first sleeve 14 and the second sleeve 15, thereby sealing the liquid storage chamber 11 and the battery receiving chamber.

[0064] In one embodiment of this application, the aerosol generating device 10 further includes a base 7 and a third sealing member 43. The base 7 is disposed on the side of the housing 1 away from the nozzle 3. The base 7, housing 1, and nozzle 3 together constitute the external appearance of the aerosol generating device 10. The third sealing member 43 is disposed between the second sleeve 15 and the base 7, thereby sealing the battery receiving cavity 151. In one embodiment of this application, a cotton padding is also disposed around the battery assembly 5. The cotton padding can fix the battery and absorb the aerosol condensed in the battery receiving cavity 151. In addition, the cotton padding is permeable to air. In one embodiment of this application, the cotton padding is C-shaped to facilitate air passage. In one embodiment of this application, the base 7 is provided with an air inlet. Air can enter the battery receiving cavity 151 through the air inlet, then pass through the mounting hole 421, and then be carried out from the first atomizing component 61 and the second atomizing component 62. After passing through the first air hole 411 and the second air hole 412 of the first sealing member 41, the aerosol is mixed in the air guide groove 413 and then provided for the user to inhale.

[0065] In one embodiment of this application, the first atomizing component 61 and the second atomizing component 62 include a support tube, a liquid guiding element, and a heating element. The liquid guiding element has a liquid guiding surface and a heating surface disposed opposite to each other. The liquid guiding surface is in fluid communication with the first liquid storage chamber 11. The liquid guiding element guides the liquid matrix from the liquid guiding surface to the heating surface. One side of the heating surface is an atomization chamber. Under the heating of the heating element on the heating surface, the liquid matrix is ​​atomized to generate an aerosol that enters the atomization chamber. In one embodiment of this application, the liquid guiding element includes a porous body. The porous body can be a fiber, such as cotton fiber, polypropylene fiber, polyester fiber, or nylon fiber. The porous body can be porous ceramic or porous metal. This application does not limit the structure and composition of the porous body. In one embodiment of this application, the support tube is a steel pipe.

[0066] In one embodiment of this application, the first atomizing component 61 and the second atomizing component 62 may include an ultrasonic element capable of high-frequency vibration under ultrasonic drive. The first atomizing component 61 and the second atomizing component 62 utilize ultrasonic vibration to atomize the liquid matrix to form an aerosol. Of course, the first atomizing component 61 and the second atomizing component 62 may also include other elements capable of atomizing the liquid matrix to form an aerosol.

[0067] In one embodiment of this application, the aerosol generating device 10 includes a first atomizing component 61 and a second atomizing component 62. The first atomizing component 61 and the second atomizing component 62 are disposed in the mounting hole 421 of the second sealing member 42. A first air pipe 21 is connected to the first atomizing component 61, and a second air pipe 22 is connected to the second atomizing component 62. In one embodiment of this application, the liquid storage member 13 in the liquid storage chamber 11 can also provide some support for the first air pipe 21 and the second air pipe 22.

[0068] In one embodiment of this application, the first sealing member 41 includes a first vent 411 and a second vent 412. One end of the first vent 411 and one end of the second vent 412 are both connected to the first gas chamber 31, and the other end of the first vent 411 and the other end of the second vent 412 are both connected to the second gas chamber 12.

[0069] In one embodiment of this application, the first sealing member 41 and the suction nozzle 3 jointly define an air guide groove 413. One end of the first air hole 411 and one end of the second air hole 412 are both connected to the air guide groove 413. The air guide groove 413 is arc-shaped. The arc-shaped air guide groove 413 allows the condensate in the aerosol after mixing and passing through the air guide groove 413 to flow back along the air guide groove 413, avoiding being inhaled by the user and affecting the suction experience.

[0070] In one embodiment of this application, the first air pipe 21 and the second air pipe 22 can directly contact the first sealing member 41, and the first air pipe 21 and the second air pipe 22 are inserted into the first sealing member 41. In one embodiment of this application, the first sealing member 41 is provided with a pressure relief hole 414 and a pressure relief channel 415, which connect the first gas chamber 31 and the second gas chamber 12. In one embodiment of this application, the first air pipe 21 and the second air pipe 22 can directly contact the first sealing member 41. When the liquid matrix in the liquid storage chamber 11 is consumed, external air can enter the second gas chamber 12 and the liquid storage member 13 through the pressure relief channel 415 and the pressure relief hole 414, so that the aerosol generating device 10 can supply liquid smoothly.

[0071] In one embodiment of this application, the first sealing member 41 includes a first main body portion 416 and a second main body portion 417 that are interconnected and disposed opposite to each other. The first main body portion 416 is disposed on the side of the first sealing member 41 facing the suction nozzle 3, and the second main body portion 417 is disposed on the side of the first sealing member 41 away from the suction nozzle. The first main body portion 416 is circular, and the second main body portion 417 is racetrack-shaped. In one embodiment of this application, as... Figure 8As shown, the cross-section of the first sleeve 14 is also racetrack-shaped, allowing the first seal 41 to be assembled with the second main body 417 and the first sleeve 14 during installation into the housing 1. Furthermore, the first air hole 411 and the second air hole 412 of the first seal 41 are aligned with the first air tube 21 and the second air tube 22. When the nozzle 3 is installed into the housing 1, it can be installed at any angle, making the installation process more convenient.

[0072] In one embodiment of this application, a second protrusion 4171 is provided on the second main body 417, and the second protrusion 4171 abuts against the liquid storage member 13 to form a second gas cavity 12.

[0073] It should be noted that the preferred embodiments of this application are given in the specification and accompanying drawings, but are not limited to the embodiments described in this specification. Furthermore, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An aerosol-generating device, characterized by, The application relates to a liquid storage device, comprising: a housing defining a liquid storage cavity for storing a liquid base; a first air tube and a second air tube arranged in the housing respectively for providing air flow paths; a mouthpiece arranged at one end of the housing, the mouthpiece defining a first opening, a second opening and a first gas cavity between the first opening and the second opening, the first opening being available for a user to hold a cigarette; a first seal arranged on the housing and used for sealing the liquid storage cavity; wherein an inner wall of the first gas cavity has a first surface, the first seal comprises a protruding air guide part, at least a part of the air guide part is accommodated in the first gas cavity from the second opening, the air guide part has a second surface which is shaped to match the first surface, and an air guide groove is formed on the second surface and is in air flow communication with the first air tube and the second air tube, the air guide groove converges air flows in the first air tube and the second air tube to the first opening.

2. The aerosol-generating device of claim 1, wherein, The air guide part and / or the first gas cavity is circular in cross section.

3. The aerosol-generating device of claim 1, wherein, The cross-sectional area of the first gas cavity gradually decreases from the second opening towards the first opening.

4. The aerosol-generating device of claim 1, wherein, The air guide groove comprises a first air guide groove communicating with the first air tube and a second air guide groove communicating with the second air tube, the first air guide groove and the second air guide groove converge and communicate with the first opening.

5. The aerosol-generating device of claim 4, wherein, A spacing part is defined between the first air guide groove and the second air guide groove, the spacing part comprises an arc surface for guiding air flow.

6. The aerosol-generating device of claim 1, wherein, A first liquid absorbing element is further arranged on the first seal, the first liquid absorbing element surrounds the air guide part and at least partially covers the air guide groove.

7. The aerosol-generating device of claim 6, wherein, A second liquid absorbing element is further arranged on the mouthpiece, the second liquid absorbing element is in contact with the first liquid absorbing element.

8. The aerosol-generating device of claim 1, wherein, The housing further defines a second gas cavity, the first seal comprises a first air hole and a second air hole, one end of the first air hole and one end of the second air hole are in communication with the first gas cavity, the other end of the first air hole and the other end of the second air hole are in communication with the second gas cavity.

9. The aerosol-generating device of claim 8, wherein, The first seal and the mouthpiece jointly define an air guide groove, one end of the first air hole and one end of the second air hole are in communication with the air guide groove, and the air guide groove is arc-shaped. 10.The aerosol-generating device of claim 8, wherein, The first seal is provided with a pressure relief hole and a pressure relief channel, the pressure relief hole and the pressure relief channel communicate the first gas cavity and the second gas cavity. 11.The aerosol-generating device of claim 1, wherein, The first seal comprises a first main body part and a second main body part which are connected to each other and oppositely arranged, the first main body part is arranged on the side of the first seal facing the mouthpiece, the first main body part is circular, and the second main body part is racetrack-shaped. 12.The aerosol-generating device of claim 1, wherein, The application further relates to a liquid storage device, comprising a second seal, a first atomization assembly and a second atomization assembly, the first atomization assembly and the second atomization assembly are mounted on mounting holes of the second seal, the first atomization assembly is connected to the first air tube, and the second atomization assembly is connected to the second air tube. 13.The aerosol-generating device of claim 1, wherein, A liquid storage element is arranged in the liquid storage cavity and used for absorbing and holding a liquid base.

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